Patent US3983056A successfully refreshed from Google Patents.
US3983056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous epoxy resin paint composition
Assignee: Dai Nippon Toryo Co Ltd
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Filing: 1974-09-25
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Granted: 1976-09-28
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Expires: 1994-09-25
Abstract
Abstract An aqueous epoxy resin paint composition comprising an epoxy resin emulsion formed by emulsifying a bisphenol type epoxy resin or a mixture of a bisphenol type epoxy resin with an epoxy resin having a compatibility with said bisphenol type epoxy resin and a structure similar to that of said bisphenol type epoxy resin but being quite different therefrom in a part of the structure in water with a polyoxyethylene benzylated phenyl ether having an HLB value of at least 15, and a curing agent and, if desired, a pigment and other additives.
Inventors
- 👤 Minoru Hosoda
- 👤 Eiichi Kasiwagi
- 👤 Fumio Murayama
- 👤 Kohei Isayama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:49
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/32; C08G59/38; C08G59/22; C08G59/226; C09; C09D; C09D163/00; C09K; C09K23/00; C09K23/42
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
56 words
An aqueous epoxy resin paint composition comprising an epoxy resin emulsion formed by emulsifying in water (A) 98 to 50% by weight of a bisphenol type epoxy resin and (B) 2 to 50% by weight of methyl-substituted bisphenol epoxy resins, with a non-ionic surface active agent, and a curing agent incorporated in said epoxy resin emulsion.
Claim 2
Dependent Claim
56 words
An aqueous epoxy resin paint composition comprising an epoxy resin emulsion formed by emulsifying in water (A) 98 to 50% by weight of a bisphenol type epoxy resin and (B) 2 to 50% by weight of methyl-substituted bisphenol epoxy resins, with a non-ionic surface active agent, and a curing agent incorporated in said epoxy resin emulsion.
Claim 3
Dependent Claim
32 words
An aqueous epoxy resin paint composition as set forth in claim 1 wherein the non-ionic surface active agent is a polyoxyethylene benzylated phenyl ether having an HLB value of at least 15.
Claim 4
Dependent Claim
29 words
An aqueous epoxy resin paint composition as set forth in claim 1 wherein the curing agent is a polyamide resin derived from a dimer acid and a polyether diamine.
Claim 5
Dependent Claim
48 words
An aqueous epoxy resin paint composition as set forth in claim 1 wherein the curing agent is a mixture, the major part of which is a polyamide resin derived from a dimer acid and a polyether diamine and the minor part of which is an aromatic amine compound.
Claim 6
Dependent Claim
54 words
An aqueous epoxy resin paint composition as set forth in claim 1 wherein the curing agent is a mixture, the major part of which is a polyamide resin derived from a dimer acid, polyether diamine and a chain extender and/or an aliphatic amine and the minor part of which is an aromatic amine compound.
Claim 7
Dependent Claim
43 words
An aqueous epoxy resin paint composition as set forth in claim 1 which further comprises 0.1 to 20% by weight of at least one member selected from the group consisting of molybdic acid salts of strontium, calcium, potassium, iron (divalent), barium and ammonium.
Claim 8
Dependent Claim
76 words
An aqueous epoxy resin paint composition which comprises an epoxy resin emulsion formed by emulsifying a mixture comprising (A) 98 to 50% by weight of a bisphenol type epoxy resin and (B) 2 to 50% by weight of methyl-substituted bisphenol epoxy resins in water with a polyoxyethylene benzylated phenyl ether having an HLB value of at least 15 and a curing agent which is a polyamide resin derived from a dimer acid and a polyether diamine.
Claim 9
Dependent Claim
76 words
An aqueous epoxy resin paint composition which comprises an epoxy resin emulsion formed by emulsifying a mixture comprising (A) 98 to 50% by weight of a bisphenol type epoxy resin and (B) 2 to 50% by weight of methyl-substituted bisphenol epoxy resins in water with a polyoxyethylene benzylated phenyl ether having an HLB value of at least 15 and a curing agent which is a polyamide resin derived from a dimer acid and a polyether diamine.
References Cited (Backward Citations)
US3125552A
Cited
US3584072A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-09-28 | 1980-03-29 | 1980-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-28 | 1984-03-29 | 1984-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-28 | 1988-03-29 | 1988-09-28 | $7700.00 | Window Closed / Lapsed |